Image credit— Hello all, I have been sharing a lot of coding interview questions for Programmers who are actively looking for Job, particularly for beginners and computer engineers who have just graduated and has no real job experience. Grokking the Coding Interview: Patterns for Coding Questions In the past, I have shared some , , and some useful to prepare for Programming Job Interview and today I am going to share a list of . data structure questions string algorithms problems online courses frequently asked linked list problems from coding interviews Data Structures are one of the most important parts of any programming Job interview and often the reason to select or reject a candidate, that’s why practicing these will give you an edge over your competitor. data structure based problems It will also make you a better programmer because you develop logic and coding sense while solving these problems which goes a long way in your programming career. What is a linked list? A is another common data structure that complements the array data structure. Similar to the array, it is also a linear data structure and stores elements in a linear fashion. linked list However, unlike the , it doesn’t store them in contiguous locations; instead, they are scattered everywhere in memory, which is connected to each other using nodes. array where each node contains the value stored and the address of the next node. A linked list is nothing but a list of nodes Because of this structure, , as you just need to change the link instead of creating the , but the search is difficult and often requires O(n) time to find an element in the singly linked list. it’s easy to add and remove elements in a linked list array This provides more information on the difference between an array and linked list data structures. article It also comes in varieties like a singly linked list, which allows you to traverse in one direction (forward or reverse); a , which allows you to traverse in both directions (forward and backward); and finally, the , which forms a circle. doubly linked list circular linked list How to solve linked list Coding Problems? In order to solve linked list-based questions, a good knowledge of is important, because . recursion a linked list is a recursive data structure If  you take one node from a linked list, the remaining data structure is still a linked list, and because of that, many linked list problems have simpler than iterative ones. recursive solutions They are also solved using divide-and-conquer techniques, which breaks the problem into sub-problems until you can solve them. For example, to reverse a linked list, you break linked list until you have got just one node, at that point, you know how to reverse that linked list of one node, it’s nothing but the same node. It’s very similar to recursion and actually, that smallest sub-problem you can solve becomes the base case for recursive solutions. Btw, there is no point solving these linked list based coding problems if you don’t have basic knowledge of data structure or you have not to refresh them in recent time. In that case, I suggest you to first go through a good or to revise the concept. data structure and algorithm courses book If  you need recommendations, following are some of my the tried and tested resources to learn Data Structure and Algorithms in depth: for Java developers Data Structures and Algorithms: Deep Dive Using Java for those who love Python Algorithms and Data Structures in Python by Colt Steele for JavaScript programmers JavaScript Algorithms and Data Structures Masterclass for those who are good at C/C++ Mastering Data Structures & Algorithms using C and C++ to refresh important Data Structure and algorithms concepts in Java. Data Structures in Java: An Interview Refresher And, if you prefer books, there is no better than by Thomas H. Cormen. It’s one of the most comprehensive books on Data Structure and Algorithms. Introduction to Algorithms Frequently asked linked list Problems from Coding Interviews Without wasting any more of your time, here are some of the most common and popular linked list interview questions from Coding interviews. I have linked to the solution wherever possible but I suggest you first try to solve the problem on your own, that will benefit you because you will think and learn. Once you have solved the problem or stuck after trying, you can look at the solution and learn from them. How do you find the middle element of a singly linked list in one pass? ( solution ) How do you check if a given linked list contains a cycle? How do you find the starting node of the cycle? ( solution ) How do you reverse a linked list? ( solution ) How do you reverse a singly linked list without recursion? ( solution ) How are duplicate nodes removed in an unsorted linked list? ( solution ) How do you find the length of a singly linked list? ( solution ) How do you find the third node from the end in a singly linked list? ( solution ) How do you find the sum of two linked lists using Stack? ( solution ) How do you reverse a linked list in place? (solution) How to add an element at the middle of the linked list? (solution) How do you sort a linked list in Java? ( solution ) What is the difference between array and linked list? ( answer ) How to remove Nth Node from the end of a linked list? ( solution ) How to merge two sorted linked list? (solution)How to convert a sorted list to a binary search tree? ( solution ) Given a linked list and a value x , partition it such that all nodes less than x come before nodes greater than or equal to x . ( solution ) How to remove duplicates from a sorted linked list? ( solution ) How to find the node at which the intersection of two singly linked lists begins. ( solution ) How to check if a given linked list is a palindrome? (solution) How to remove all elements from a linked list of integers which matches with given value? (solution) These questions will help you to develop your problem-solving skills as well as improve your knowledge of the linked list data structure. If  you are having trouble solving these linked list coding questions then I suggest you refresh your data structure and algorithms skill by going through course. Data Structures and Algorithms: Deep Dive Using Java If these questions are not enough then you can also check out this list of for more practice questions. 30 linked list interview questions Useful Resources for Coding Interviews If you need some useful resources to do well on your programming and Coding Job interview, here are some of the online courses and books you should check out: Data Structures and Algorithms: Deep Dive Using Java Grokking the Coding Interview: Patterns for Coding Questions Cracking the Coding Interview Book Master the Coding Interview: Data Structures + Algorithms Preparing For a Job Interview By John Sonmez Now You’re Ready for the Coding Interview These are some of the most common questions outside of data structure and algorithms that help you to do really well in your interview. I have also shared a lot of data structure and algorithms questions on my , so if you are really interested, you can always go there and search for them. blog These common , , and question are the ones you need to know to successfully interview with any company, big or small, for any level of programming job. coding data structure algorithms s If  you are looking for a programming or software development job in 2018, you can start your preparation with this list of coding questions. This list provides good topics to prepare and also helps assess your preparation to find out your areas of strength and weakness. Good knowledge of data structure and algorithms is important for success in coding interviews and that’s where you should focus most of your attention. Other Articles You May Like 10 Algorithm Books Every Programmer Should Read Top 5 Data Structure and Algorithm Books for Java Developers 20+ String Coding Problems from Interviews 50+ Data Structure and Algorithms Problems from Interviews 30+ Array-based Problems from Coding Interviews From 0 to 1: Data Structures & Algorithms in Java Data Structure and Algorithms Analysis — Job Interview 10 Books to Prepare Technical Programming/Coding Job Interviews Closing Notes Thanks, You made it to the end of the article … Good luck with your programming  interview! It’s certainly not going to be easy, but you are one step closer to the success and the job you always wanted, after practicing these questions. If you like this article, then please share with your friends and colleagues, and don’t forget to follow on Twitter! javinpaul P.S. — If you need some FREE resources, you can check out this list of to start your preparation. free data structure and algorithm courses

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Top 20 Linked List Coding Problems from Programming Job Interviews

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